1234431043 has 2 divisors, whose sum is σ = 1234431044. Its totient is φ = 1234431042.

The previous prime is 1234431031. The next prime is 1234431071. The reversal of 1234431043 is 3401344321.

It is a weak prime.

It is an emirp because it is prime and its reverse (3401344321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1234431043 - 2²⁹ = 697560131 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1234430999 and 1234431017.

It is not a weakly prime, because it can be changed into another prime (1234431743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 617215521 + 617215522.

It is an arithmetic number, because the mean of its divisors is an integer number (617215522).

Almost surely, 2^1234431043 is an apocalyptic number.

1234431043 is a deficient number, since it is larger than the sum of its proper divisors (1).

1234431043 is an equidigital number, since it uses as much as digits as its factorization.

1234431043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3456, while the sum is 25.

The square root of 1234431043 is about 35134.4708655190. The cubic root of 1234431043 is about 1072.7263408785.

Adding to 1234431043 its reverse (3401344321), we get a palindrome (4635775364).

The spelling of 1234431043 in words is "one billion, two hundred thirty-four million, four hundred thirty-one thousand, forty-three".